Process dumped core. status=11/SEGV #2263

allergicapple commented 2026年01月12日 21:19:39 +01:00

Foot Version

foot version: 1.25.0 +pgo +ime +graphemes -assertions

TERM environment variable

xterm-256color

Compositor Name and Version

KDE Plasma 6.5.4

Distribution

CachyOS x86-64-v3

Terminal multiplexer

(none)

Shell, TUI, application

bash

Server/standalone mode

• Standalone
• Server

Foot config

# (removed commented lines, this remains:)
term=xterm-256color
font=monospace:size=10
initial-window-size-chars=159x41
pad=3x2
bold-text-in-bright=palette-based
[scrollback]
lines=100000

Description of Bug and Steps to Reproduce

Using foot server desktop shortcut installed on the system and enlisted in the KDE Plasma autostart jobs.

Open new terminal windows calling footclient.
I usually have one open but regularily close all open foot terminals.
After a while I notice I cannot open new terminals anymore.

Relevant logs, stacktraces, etc.

A look into journalctl --user --unit app-foot\\x2dserver@autostart.service as indicated by the KDE Plasma autostart job reveals:

Jan 11 13:01:30 cachyos systemd-coredump[129309]: Process 1795 (foot) of user 1000 dumped core.
 
 Stack trace of thread 112515:
 #0 0x000055e4f4211b9d n/a (/usr/bin/foot + 0x3db9d)
 #1 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #2 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 1795:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca42d8 n/a (libc.so.6 + 0xa42d8)
 #2 0x00007f6d1dd2cb33 ppoll (libc.so.6 + 0x12cb33)
 #3 0x00007f6d1e10aa77 n/a (libwayland-client.so.0 + 0x3a77)
 #4 0x00007f6d1e11079a wl_display_dispatch_queue_timeout (libwayland-client.so.0 + 0x979a)
 #5 0x00007f6d1e110860 wl_display_dispatch_queue (libwayland-client.so.0 + 0x9860)
 #6 0x00007f6d1e11094c wl_display_roundtrip_queue (libwayland-client.so.0 + 0x994c)
 #7 0x000055e4f4226c5e n/a (/usr/bin/foot + 0x52c5e)
 #8 0x000055e4f4226bf5 n/a (/usr/bin/foot + 0x52bf5)
 #9 0x000055e4f4226971 n/a (/usr/bin/foot + 0x52971)
 #10 0x000055e4f421850f n/a (/usr/bin/foot + 0x4450f)
 #11 0x00007f6d1dc27b8b n/a (libc.so.6 + 0x27b8b)
 #12 0x00007f6d1dc27c4b __libc_start_main (libc.so.6 + 0x27c4b)
 #13 0x000055e4f4215b15 n/a (/usr/bin/foot + 0x41b15)
 
 Stack trace of thread 112510:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112521:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112514:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112524:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112509:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112513:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112516:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112522:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112512:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112518:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112519:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112520:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112523:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112511:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 112517:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46652:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46654:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46647:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46651:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46655:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46650:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 Stack trace of thread 46660:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46661:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46653:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46648:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46646:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46649:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 Stack trace of thread 46659:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46656:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46658:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 
 Stack trace of thread 46657:
 #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892)
 #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248)
 #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3)
 #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798)
 #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f)
 #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d)
 #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c)
 ELF object binary architecture: AMD x86-64
Jan 11 13:01:30 cachyos systemd[1129]: app-foot\x2dserver@autostart.service: Main process exited, code=dumped, status=11/SEGV
Jan 11 13:01:30 cachyos systemd[1129]: app-foot\x2dserver@autostart.service: Failed with result 'core-dump'.
Jan 11 13:01:30 cachyos systemd[1129]: app-foot\x2dserver@autostart.service: Consumed 9min 27.187s CPU time over 12h 56min 19.100s wall clock time, 22.9G memory peak, 327.9M memory swap peak.

OT: That are quite a lot of threads... is that correct or are these leftovers not cleaned up after the window closes?

OT: 22.9G memory peak?

### Foot Version foot version: 1.25.0 +pgo +ime +graphemes -assertions ### TERM environment variable xterm-256color ### Compositor Name and Version KDE Plasma 6.5.4 ### Distribution CachyOS x86-64-v3 ### Terminal multiplexer (none) ### Shell, TUI, application bash ### Server/standalone mode - [ ] Standalone - [x] Server ### Foot config ```ini # (removed commented lines, this remains:) term=xterm-256color font=monospace:size=10 initial-window-size-chars=159x41 pad=3x2 bold-text-in-bright=palette-based [scrollback] lines=100000 ``` ### Description of Bug and Steps to Reproduce Using foot server desktop shortcut installed on the system and enlisted in the KDE Plasma autostart jobs. Open new terminal windows calling `footclient`. I usually have one open but regularily close all open foot terminals. After a while I notice I cannot open new terminals anymore. ### Relevant logs, stacktraces, etc. A look into `journalctl --user --unit app-foot\\x2dserver@autostart.service` as indicated by the KDE Plasma autostart job reveals: ``` Jan 11 13:01:30 cachyos systemd-coredump[129309]: Process 1795 (foot) of user 1000 dumped core. Stack trace of thread 112515: #0 0x000055e4f4211b9d n/a (/usr/bin/foot + 0x3db9d) #1 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #2 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 1795: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca42d8 n/a (libc.so.6 + 0xa42d8) #2 0x00007f6d1dd2cb33 ppoll (libc.so.6 + 0x12cb33) #3 0x00007f6d1e10aa77 n/a (libwayland-client.so.0 + 0x3a77) #4 0x00007f6d1e11079a wl_display_dispatch_queue_timeout (libwayland-client.so.0 + 0x979a) #5 0x00007f6d1e110860 wl_display_dispatch_queue (libwayland-client.so.0 + 0x9860) #6 0x00007f6d1e11094c wl_display_roundtrip_queue (libwayland-client.so.0 + 0x994c) #7 0x000055e4f4226c5e n/a (/usr/bin/foot + 0x52c5e) #8 0x000055e4f4226bf5 n/a (/usr/bin/foot + 0x52bf5) #9 0x000055e4f4226971 n/a (/usr/bin/foot + 0x52971) #10 0x000055e4f421850f n/a (/usr/bin/foot + 0x4450f) #11 0x00007f6d1dc27b8b n/a (libc.so.6 + 0x27b8b) #12 0x00007f6d1dc27c4b __libc_start_main (libc.so.6 + 0x27c4b) #13 0x000055e4f4215b15 n/a (/usr/bin/foot + 0x41b15) Stack trace of thread 112510: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112521: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112514: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112524: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112509: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112513: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112516: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112522: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112512: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112518: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112519: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112520: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112523: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112511: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 112517: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46652: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46654: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46647: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46651: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46655: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46650: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46660: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46661: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46653: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46648: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46646: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46649: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46659: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46656: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46658: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) Stack trace of thread 46657: #0 0x00007f6d1dcb0892 n/a (libc.so.6 + 0xb0892) #1 0x00007f6d1dca4248 n/a (libc.so.6 + 0xa4248) #2 0x00007f6d1dca49a3 n/a (libc.so.6 + 0xa49a3) #3 0x00007f6d1dcb0798 n/a (libc.so.6 + 0xb0798) #4 0x000055e4f421196f n/a (/usr/bin/foot + 0x3d96f) #5 0x00007f6d1dca7f8d n/a (libc.so.6 + 0xa7f8d) #6 0x00007f6d1dd3b05c n/a (libc.so.6 + 0x13b05c) ELF object binary architecture: AMD x86-64 Jan 11 13:01:30 cachyos systemd[1129]: app-foot\x2dserver@autostart.service: Main process exited, code=dumped, status=11/SEGV Jan 11 13:01:30 cachyos systemd[1129]: app-foot\x2dserver@autostart.service: Failed with result 'core-dump'. Jan 11 13:01:30 cachyos systemd[1129]: app-foot\x2dserver@autostart.service: Consumed 9min 27.187s CPU time over 12h 56min 19.100s wall clock time, 22.9G memory peak, 327.9M memory swap peak. ``` OT: That are quite a lot of threads... is that correct or are these leftovers not cleaned up after the window closes? OT: `22.9G memory peak`?

dnkl commented 2026年01月14日 07:42:45 +01:00

Sounds like there may be a memory leak. The "crash" is most likely just foot detecting it's out of memory, and asserting on it. Unfortunately, I cannot reproduce. It's likely that there's something you're doing that causes the memory leak. We need to figure out what that is. There's no easy way, besides watching the foot server's memory usage and try to reproduce the leak.

FWIW, I cannot reproduce it at all. This means we won't be able to do anything about this, until either:

• Someone figures out the exact details to reproduce the issue
• Someone who can reproduce it gets a usable backtrace, with symbols and line numbers

OT: That are quite a lot of threads... is that correct or are these leftovers not cleaned up after the window closes?

Foot uses threads to speed up rendering. The default is to use as many threads as you have logical cores/threads. See the workers option in foot.ini.

Sounds like there may be a memory leak. The "crash" is most likely just foot detecting it's out of memory, and asserting on it. Unfortunately, I cannot reproduce. It's likely that there's something you're doing that causes the memory leak. We need to figure out what that is. There's no easy way, besides watching the foot server's memory usage and try to reproduce the leak. FWIW, I cannot reproduce it at all. This means we won't be able to do _anything_ about this, until either: * Someone figures out the exact details to reproduce the issue * Someone who can reproduce it gets a usable backtrace, with symbols and line numbers > OT: That are quite a lot of threads... is that correct or are these leftovers not cleaned up after the window closes? Foot uses threads to speed up rendering. The default is to use as many threads as you have logical cores/threads. See the `workers` option in `foot.ini`.

dnkl commented 2026年01月14日 07:45:45 +01:00

I should mention that I regularly run foot, including the server, under valgrind. There are currently no known memory leaks.

I should mention that I regularly run foot, including the server, under valgrind. There are currently no known memory leaks.

allergicapple commented 2026年01月14日 08:31:23 +01:00

@dnkl wrote in #2263 (comment):

Sounds like there may be a memory leak. The "crash" is most likely just foot detecting it's out of memory, and asserting on it. Unfortunately, I cannot reproduce. It's likely that there's something you're doing that causes the memory leak. We need to figure out what that is. There's no easy way, besides watching the foot server's memory usage and try to reproduce the leak.

FWIW, I cannot reproduce it at all. This means we won't be able to do anything about this, until either:

* Someone figures out the exact details to reproduce the issue
* Someone who can reproduce it gets a usable backtrace, with symbols and line numbers

I compiled a debug version as described in
https://codeberg.org/dnkl/foot/src/branch/master/INSTALL.md#debug-build
and symlinked system foot and footclient to these without further installation.

Is that enough for debug info?

OT: That are quite a lot of threads... is that correct or are these leftovers not cleaned up after the window closes?

Foot uses threads to speed up rendering. The default is to use as many threads as you have logical cores/threads. See the workers option in foot.ini.

I counted 33 threads and have 16 cores. Sounds plausible?

@dnkl wrote in https://codeberg.org/dnkl/foot/issues/2263#issuecomment-9820649: > Sounds like there may be a memory leak. The "crash" is most likely just foot detecting it's out of memory, and asserting on it. Unfortunately, I cannot reproduce. It's likely that there's something you're doing that causes the memory leak. We need to figure out what that is. There's no easy way, besides watching the foot server's memory usage and try to reproduce the leak. > > FWIW, I cannot reproduce it at all. This means we won't be able to do _anything_ about this, until either: > > * Someone figures out the exact details to reproduce the issue > > * Someone who can reproduce it gets a usable backtrace, with symbols and line numbers I compiled a debug version as described in https://codeberg.org/dnkl/foot/src/branch/master/INSTALL.md#debug-build and symlinked system `foot` and `footclient` to these without further installation. Is that enough for debug info? > > OT: That are quite a lot of threads... is that correct or are these leftovers not cleaned up after the window closes? > > Foot uses threads to speed up rendering. The default is to use as many threads as you have logical cores/threads. See the `workers` option in `foot.ini`. I counted 33 threads and have 16 cores. Sounds plausible?

dnkl commented 2026年01月14日 11:11:01 +01:00

Is that enough for debug info?

Should be. As long as the running binary has debug symbols (i.e. haven't been stripped).

I counted 33 threads and have 16 cores. Sounds plausible?

Yes, the renderer threads are per window instance.

> Is that enough for debug info? Should be. As long as the running binary has debug symbols (i.e. haven't been stripped). > I counted 33 threads and have 16 cores. Sounds plausible? Yes, the renderer threads are per window instance.

allergicapple commented 2026年01月20日 22:17:29 +01:00

Hello again,

I have some core-dumps ready for you, attached to this post.

Let me know if they are of help and if I can provide something more.

$ foot --version
foot version: 1.25.0-34-gb78cc923 (Jan 14 2026, branch 'master') -pgo +ime +graphemes +toplevel-tag +assertions
$ file foot
foot: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=b04b7b9d7a2fe5b659159095f8dbf9c94f1d97bd, for GNU/Linux 6.1.0, with debug_info, not stripped

Hello again, I have some core-dumps ready for you, attached to this post. Let me know if they are of help and if I can provide something more. ```shell $ foot --version foot version: 1.25.0-34-gb78cc923 (Jan 14 2026, branch 'master') -pgo +ime +graphemes +toplevel-tag +assertions $ file foot foot: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=b04b7b9d7a2fe5b659159095f8dbf9c94f1d97bd, for GNU/Linux 6.1.0, with debug_info, not stripped ```

allergicapple commented 2026年01月27日 09:21:19 +01:00

I've seen the config mentions a monospace font.
In case the bug has something to do with font handling or rendering I want to add the local fonts configuration:

$ cat /etc/fonts/local.conf 
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
 <alias>
 <family>sans-serif</family>
 <prefer>
 <family>Liberation Sans</family>
 </prefer>
 </alias>
 <alias>
 <family>serif</family>
 <prefer>
 <family>Liberation Serif</family>
 </prefer>
 </alias>
 <alias>
 <family>monospace</family>
 <prefer>
 <family>JetBrainsMono Nerd Font</family>
 </prefer>
 </alias>
</fontconfig>

and the monospace font was installed from this package:

$ pacman -Ss ttf-jetbrains-mono-nerd
extra/ttf-jetbrains-mono-nerd 3.4.0-2 (nerd-fonts) [installed]
 Patched font JetBrains Mono from nerd fonts library

I've seen the config mentions a `monospace` font. In case the bug has something to do with font handling or rendering I want to add the local fonts configuration: ```shell $ cat /etc/fonts/local.conf <?xml version="1.0"?> <!DOCTYPE fontconfig SYSTEM "fonts.dtd"> <fontconfig> <alias> <family>sans-serif</family> <prefer> <family>Liberation Sans</family> </prefer> </alias> <alias> <family>serif</family> <prefer> <family>Liberation Serif</family> </prefer> </alias> <alias> <family>monospace</family> <prefer> <family>JetBrainsMono Nerd Font</family> </prefer> </alias> </fontconfig> ``` and the monospace font was installed from this package: ```shell $ pacman -Ss ttf-jetbrains-mono-nerd extra/ttf-jetbrains-mono-nerd 3.4.0-2 (nerd-fonts) [installed] Patched font JetBrains Mono from nerd fonts library ```

dnkl commented 2026年01月28日 09:50:11 +01:00

@allergicapple can you try #2269?

I think it'll fix the crash, but I can't be sure since I haven't been able to reproduce this issue myself (font is not related).

@allergicapple can you try https://codeberg.org/dnkl/foot/pulls/2269? I _think_ it'll fix the crash, but I can't be sure since I haven't been able to reproduce this issue myself (font is not related).

allergicapple commented 2026年01月28日 10:17:36 +01:00

Now running

$ foot --version
foot version: 1.25.0-37-g75e11334 (Jan 28 2026, branch 'pre-apply-damage-crash-on-shutdown') -pgo +ime +graphemes +toplevel-tag +assertions

Will report back.

Now running ```shell $ foot --version foot version: 1.25.0-37-g75e11334 (Jan 28 2026, branch 'pre-apply-damage-crash-on-shutdown') -pgo +ime +graphemes +toplevel-tag +assertions ``` Will report back.

allergicapple commented 2026年02月01日 17:41:05 +01:00

So far, so good. No new crashes.

So far, so good. No new crashes.

dnkl commented 2026年02月02日 12:40:16 +01:00

Alright, let's merge and close this. Please re-open if the issue re-appears.

Alright, let's merge and close this. Please re-open if the issue re-appears.

allergicapple commented 2026年04月22日 13:27:35 +02:00

Reopening because I can still see leftover bash history files from recent days:

❯ ls -a1 -- .bash*
.bash_history
.bash_history-01215.tmp
.bash_history-01228.tmp
.bash_history-01229.tmp
.bash_history-01256.tmp
.bash_history-01266.tmp
.bash_history-01588.tmp
.bash_history-76889.tmp
.bash_logout
.bashrc

❯ foot --version
foot version: 1.26.1 +pgo +ime +graphemes +toplevel-tag +blur -assertions

I traced back one of the leftover files to a journal part where it's visible the Plasma desktop is shutting down.
Maybe, when having a foot window open and closing Plasma, it closes unclean and leaves remnants/does not merge history?

Please try it yourself; if necessary i can run a debug build again but currently I am unsure how to trigger.

Reopening because I can still see leftover bash history files from recent days: ``` ❯ ls -a1 -- .bash* .bash_history .bash_history-01215.tmp .bash_history-01228.tmp .bash_history-01229.tmp .bash_history-01256.tmp .bash_history-01266.tmp .bash_history-01588.tmp .bash_history-76889.tmp .bash_logout .bashrc ``` ``` ❯ foot --version foot version: 1.26.1 +pgo +ime +graphemes +toplevel-tag +blur -assertions ``` I traced back one of the leftover files to a journal part where it's visible the Plasma desktop is shutting down. Maybe, when having a foot window open and closing Plasma, it closes unclean and leaves remnants/does not merge history? Please try it yourself; if necessary i can run a debug build again but currently I am unsure how to trigger.